Rust-dissolving liquid



P tented Sept. 30, 1924.

J. NOBBERG, 0E EVERETT, WASHTNGTO'N.

RUST -DISSOL'VING LIQUID.

t io Drawing.

To cZZ whom it may concern:

Be it known that I, ERIK J. NORBERG, a citizen of the United States, residing at Everett, Snohomish County, Washington,

have invented a new and useful Rust-Dissolving Liquid, of which the following is a specification. v

The object of my invention is the produc- 'tion of a fluid com sition for dissolving m and removing rust comparatively unaccessible places such as in threaded or other joints, whereby the latter may be separated or screwed apart without breaking or doing violence to the n structure, without the aid of powerful tools and with a minimum of physical exertion on the part ofthe mechanic or o erator.

lifiy composition consists in its arge'r portion of: an acid li uid obtained from a ferg, mar an or alcoho ic liquid by oxidization, s1.ch as vinegar; a minor portion of an acid such as carbolic acid, and a similar portime. of a pungent, mobile liquid obtained the destructive distillation of wood by is orridization of alcohol with ferments,

such acetic acid.

in preparing the composition i refer to the ingredients in about the ibllowing pro aortionsvia,

' -iitc vinegar, eight parts, Ssrbclic ac1d, one part, Acetic acid, one part.

A few drops of odor neutralizer, or pereatract are also added to each eight in either accessible or 7 Application filed February 26, 1923. Serial No. 621,473.

ounces of the above compound. Ro'sewater 35 has been found suitable for impre ating the compound with a more agreeab e odor.

The whole compound is thoroughly mixed,

or stirred together, as by the egg-beater process.

My composition is highly fluid and penetrative as well as active 'inits dissolution of rust which it attacks in out of the way positions by a sort of capillaryattraction.

I claim: v

1. A composition adapted to penetrate and dissolve rust, comprising in its larger proportion an acid liquid, a smaller proportion of crystalline burning acid such as carbolio acid, and a pungent and mobile no liquid obtained by destructive wood distillation.

2. A rust-dissolving composition which consists of: a larger proportion of alcoholic liquid acid, a smaller proportion of bnrnso ing acid such as carbolic acid, and a substantially similar proportion of a pungent and mobile acid obtained from destructive wood distillation 3. A composition for removing rust which so consists substantially of about eight parts of White vinegar, one part of? carbolic acid, one part of acetic acid, and a few drops of a suitable flavoring extract.-

in testimony whereof I have hereunto signed my name 

